BMW 5 Series: Control units on the local CAN
The control units on the local CAN are not displayed in the bus overview by the BMW diagnosis system ISTA. Diagnosis takes place via the corresponding primary control unit.
Radar sensor (primary)
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Radar sensor, left (RSL) and radar sensor, right (RSR)
The control units for the radar sensor, front right (RSR) and radar sensor, front left (RSL) are installed at the front right and front left of the vehicle for the optional equipment Driving Assist Plus.
Lane change warning SWW2 (secondary) also know as the Short Range Radar Sensor (SRR2)
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Lane change warning
Both control units lane change warning SWW/SRR (primary) and SWW2/SRR2 (secondary) are shown in the picture. The SWW/SRR (primary) control unit is located on the right. The control unit lane change warning SWW2/SRR2 (secondary) is on the left. The control unit lane change warning SWW2/ SRR2 (secondary) is connected with the control unit lane change warning SWW/SRR (primary) via a local CAN. Diagnose with the BMW diagnosis system takes place via the primary control unit.
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Functional principle
The system measures potential parking spaces when driving past at a speed
below approximately
22 mph (35 km/h) even without the system having been activated.
The parking spaces are measured by two additional ultrasonic sensors, which are
integrated into
the front wheel arch. Two additional u
Switching on/off and interrupting
cruise control
Switching on
Press the button on the steering
wheel.
The indicator lights in the instrument cluster light
up and the mark in the speedometer is set to the
current speed.
Cruise control is active. The current speed is
maintained and stored as desired speed.
DSC Dynamic Stability Control is switche
